Home / 231,530.81-319,411.08-135,994.41

Finding the Fourth Proportional to 231,530.81, 319,411.08 and 135,994.41

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Solution

The fourth proportional to 231,530.81, 319,411.08 and 135,994.41 is: 187,612.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,530.81 : 319,411.08 = 135,994.41 : x
  2. Step 2: Convert to fraction form
    231,530.81/319,411.08 = 135,994.41/x
  3. Step 3: Cross multiply
    231,530.81x = 319,411.08 × 135,994.41
  4. Step 4: Simplify right side
    231,530.81x = 43,438,121,372.06
  5. Step 5: Solve for x
    x = 43,438,121,372.06/231,530.81
  6. Step 6: Final answer
    x = 187,612.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.